用热机械分析(TMA)方法研究了三聚氰胺-尿素-甲醛树脂固化初期胶层粘度的变化。
Viscosity change of melamine urea formaldehyde glue line was investigated with a thermo mechanical analyzer (TMA) used as a parallel plates rheometer.
含胺基或氨基树脂是尿素或三聚氰胺和甲醛烷基化反应产品。
An amine or amino resin is the alkylated reaction product of urea or melamine and formaldehyde.
以磺化三聚氰胺和尿素为单体,在酸催化下,合成磺化三聚氰胺尿素甲醛树脂。
With sulfonated melamine and urea as monomers and acids as catalysts, the synthesis of sulfonated melamine urea formaldehyde resin is carried out.
采用亚硫酸钠和三聚氰胺- 尿素- 甲醛预缩液对黑荆树单宁胶粘剂进行改性处理,制备具有良好的耐水性能和胶合性能的单宁胶粘剂。
The modification has been made on the black wattle tannin adhesive with sodium sulfite and the MUF concentrate so as to prepare out a tannin adhesive with good water-proof and better glue properties.
三聚氰胺、尿素与甲醛经羟甲基化、醚化反应,生成甲醚化六羟甲基三聚氰胺和甲醚化羟甲基脲复合树脂胶。
Melamine, urea and formaldehyde underwent hydroxymethylation and etherification to yield a composed resin glue of methyl-etherified hexahydroxy methylmelamine and methyl-etherified hydroxymethylurea.
本文介绍尿素-三聚氰胺-甲醛共缩聚合成机理、树脂性能、以及制备工艺对其性能的影响。
The mechanisms of co-condensation, the properties and performance of MUF resin are described in this paper.
本文介绍尿素-三聚氰胺-甲醛共缩聚合成机理、树脂性能、以及制备工艺对其性能的影响。
The mechanisms of co-condensation, the properties and performance of MUF resin are described in this paper.
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